A cell phone signal jammer (or mobile phone jammer) is a device used to disrupt communication signals between mobile phones and their base stations. It deliberately incapacitates mobile phones within range. Signal jammers are practically used to disable a mobile phone’s Wi-Fi, Bluetooth, camera, and call/text feature.
You will often see cell phone signal jammers at entertainment venues where silence is a priority e.g. recitals or plays. You can also find them in offices where the management doesn’t want any interruption during important meetings.
Signal jammers are also effective in households. Parents can successfully pull their loved ones’ attention away from their phones.
4 Best Cell Phone Signal Jammer
Creating a DIY cell phone signal jammer can be a lot of work especially if you’re not into electronics. Alternatively, you can purchase a signal jammer, so you don’t need to go through the complicated stuff of building a DIY.
8 Bands Portable Cell Phone Jammers – $253.50
If you’re looking for a strong signal jammer that has a wide range, this portable 8-band cell phone jammer is what you need. It works with 4G LTE, 5G Evolution, 3G network, GSM, Wi-Fi, and GPS within 5 to 20 meters (depending on environment and signal strength).
Its battery will last for about 1-2 hours, which is the typical battery life for most cell phone signal jammer. It is also bulky with its antennas extending up to 112mm and weighs 1 kg.
It comes with a power adapter, a manual, and a car charger.
You can get this 8 Bans Portable Cell Phone Jammer from Jammer’s store.
10 Antennas Military Jammer – $422.50
This signal jammer Is almost twice the price, but it has 10-band frequencies that can disrupt mobile signals within a 5 to 20-meter range. It can interrupt networks running in 3G, 4G LTE, GSM, and GPS. This is 500 grams heavier too at 1.5kg and its battery lasts a maximum of 2 hours.
It also comes with a manual, so you can refer to it whenever the need arises.
You can get this 10 Antennas Military Jammer from Jammer’s store.
Portable Cell Phone Blocker with Cooling Fan – $165.62
This portable signal jammer works with 4G LTE, 3G, GSM, PCS, SDMA, and DCS but doesn’t work with GPS and Wi-Fi. It is best to use this in places where unnecessary phone calls are not welcome like meetings. It jams cell phone signals that are about 5 to 10 meters in range. It also has standard battery life.
It weighs lighter than the first two at 0.8 KG and comes with a cooling fan.
You can get this Portable Cell Phone Blocker with Cooling Fan from Jammer’s store.
6 Antenna Portable Signal Jammer Blocker – $250.12
This cell phone signal jammer jams GPS, mobile phones (which runs on 4G WIMAX, 3G, GSM), Lojack, and DCS. Unfortunately, this device doesn’t jam the Wi-Fi signal.
This 6-antenna portable GPS can jam signal up to a 20-meter range and weighs a kilogram. It has a typical battery life of 2 hours and comes with a car charger.
You can get this 6 Antenna Portable Signal Jammer Blocker from Jammer’s store.
Frequently Asked Questions
How do I know if someone is using a cell phone jammer?
What is the best cell phone jammer app?
While there are signal jammer apps that can detect any interference in the area, it is not possible to jam a mobile phone using your own.
How do I make a DIY cell phone jammer?
DIY Fandom has created a cell phone jammer which runs in an 800 MHZ band that he explained in this post.
Protect Your Phone from Signal Jammers and Hackers
Mission Darkness Non-Window Faraday Bag for Phones – from $22.99
If you want to protect your GSM phone/GPS/smartphones from jammers and hackers, the Mission Darkness Non-Window Faraday Bag shields your devices using EMP or Electromagnetic Pulse.
It blocks any wireless signals protecting it from malicious activities and preventing anyone from accessing your microphone, GPS, data, or camera. It is water-resistant and made from ballistic nylon materials.
Use Cell Phone Signal Jammers Responsibly
Disclaimer: JOA does not recommend the use of cell phone signal jammer, DIY signal jammer, or cell phone signal jammer app anywhere, without a license or obtaining necessary approvals from the government, private sectors, or whoever concerned, as the use of signal jammers are illegal/prohibited/restricted in most countries.
Where there is a need to use signal jammers, you should always remember to use it responsibly.
Have you tried making your own DIY cell phone signal jammer? Do you know any cell phone signal jammer apps? Have you encountered being jammed by another device?
Share your story in the comments section below!